I use these with my color coded hanging file folder system for vendors/months/grants that have a lot of annual paperwork. The size is fine, it's really just a normal folder that's a bit taller, with pre-creased lines towards the bottom to open it out into a box shape. Unfortunately, the colors don't match my Staples brand colored non-expanding file folders, nor my Staples brand hanging file folders. Not only are the colors not quite right, but they have orange in their set, instead of purple.